Ceramic 3D printing extrusion nozzle

Abstract

The utility model discloses a ceramic 3D printing extrusion spray head, relates to the technical field of extrusion spray heads, and aims to solve the problem that the conventional 3D printing extrusion spray head can perform position adjustment extrusion printing only by relying on a guide rail structure of a printer, so that the installation and the use of the extrusion spray head are greatly limited. Comprising an extrusion guide cylinder, a feeding connector is formed in the outer wall of one side of the extrusion guide cylinder and communicates with the interior of the extrusion guide cylinder, a bottom spray head is arranged at the lower end of the extrusion guide cylinder, and the bottom spray head and the extrusion guide cylinder are of an integrated structure; the top seat plate is arranged at the upper end of the extrusion guide cylinder, the top seat plate and the extrusion guide cylinder are of an integrated structure, a driving motor is arranged at the upper end of the top seat plate, and a spiral extrusion rod is arranged in the extrusion guide cylinder; and the frame top plate is arranged at the upper end of the driving motor, an assembling receiving disc is arranged at the upper end of the frame top plate, and the assembling receiving disc and the frame top plate are of an integrated structure.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion nozzles, in particular to a ceramic 3D printing extrusion nozzle. Background Art

[0002] 3D printing is a type of rapid prototyping technology, also known as additive manufacturing. It is a technology that uses digital model files as the basis and uses powdered metal or plastic and other bondable materials to construct objects by printing layer by layer. Ceramic 3D printing requires the use of an extrusion nozzle to extrude ceramic materials during the processing process.

[0003] For example, the announcement number is: CN213766309U (named a new type of ceramic 3D printing extrusion nozzle), the device includes an extrusion sleeve and a feeding pipeline mechanism, the bottom end of the extrusion sleeve is provided with an extrusion head, the top end of the extrusion sleeve is mutually locked with the motor by bolts, the output shaft at the bottom end of the motor is connected to the spiral blade, the front end of the extrusion sleeve is welded with a connecting plate, the rear end of the extrusion sleeve is connected to the feeding pipeline mechanism, the feeding pipeline mechanism includes a three-way pipe, a reversing valve, an inlet pipe and an adsorption pipe, the front end of the three-way pipe is connected to the reversing valve, and the The upper and lower sides of the front end of the reversing valve are respectively connected to the inlet pipe and the adsorption pipe, and the front ends of the inlet pipe and the adsorption pipe are respectively connected to the extrusion sleeve and the extrusion head. The reversing valve includes a control mechanism, a butterfly valve, a valve stem and a valve disc. Butterfly valves are fixed on the upper and lower sides of the control mechanism. A valve stem is vertically installed inside the butterfly valve, and a valve disc is welded to the outside of the valve stem. The upper and lower ends of the control mechanism are respectively connected to the valve stems of the two butterfly valves, the right ends of the inlet pipe and the adsorption pipe are respectively connected to the two butterfly valves, and the right ends of the two butterfly valves are respectively connected to the three-way pipes.

[0004] The above-mentioned 3D printing extrusion nozzle needs to rely on the guide rail structure of the printer to adjust the extrusion printing, which leads to the problem that there are great limitations in the installation and use of the extrusion nozzle. For this reason, we provide a ceramic 3D printing extrusion nozzle. Utility Model Content

[0005] The purpose of the utility model is to provide a ceramic 3D printing extrusion nozzle to solve the problem that the existing 3D printing extrusion nozzle proposed in the above background technology needs to rely on the guide rail structure of the printer to adjust the extrusion printing, resulting in great limitations in the installation and use of the extrusion nozzle.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a ceramic 3D printing extrusion nozzle, including an extrusion guide cylinder, a feeding interface is arranged on one side outer wall of the extrusion guide cylinder, the feeding interface is connected to the inside of the extrusion guide cylinder, a bottom nozzle is arranged at the lower end of the extrusion guide cylinder, and the bottom nozzle and the extrusion guide cylinder are an integrated structure;

[0007] Also includes:

[0008] A top seat plate is arranged at the upper end of the extrusion guide cylinder. The top seat plate and the extrusion guide cylinder are an integrated structure. A driving motor is arranged at the upper end of the top seat plate. A spiral extrusion rod is arranged inside the extrusion guide cylinder.

[0009] A frame top plate, which is arranged at the upper end of the driving motor, and an assembly plate is arranged at the upper end of the frame top plate, the assembly plate and the frame top plate are an integrated structure, an electric cylinder is arranged above the assembly plate, and a piston rod of the electric cylinder is fixedly connected to the assembly plate by screws;

[0010] The movable seat plate and the base plate 1 are arranged above the electric cylinder, and the lower end of the base plate 1 is provided with a steering drive motor, the output shaft of the steering drive motor is provided with a connecting disc seat, the connecting disc seat is welded to the output shaft of the steering drive motor, and the connecting disc seat is fixedly connected to the base plate 1 by screws;

[0011] The electric push rod is fixedly arranged on the upper end position of the base plate 1 by screws, and the upper end of the movable base plate is provided with a base plate 2, and the piston rod of the electric push rod is fixedly connected with the base plate 2 by screws.

[0012] Preferably, a content cavity is provided inside the base plate 1, an internal connecting plate is provided inside the content cavity, the internal connecting plate and the movable seat plate are an integrated structure, a limiting end block is provided at one end of the internal connecting plate, and the size of the limiting end block is larger than the size of the content cavity.

[0013] Preferably, a transmission coupling is provided at the upper end of the spiral extrusion rod, the transmission coupling and the spiral extrusion rod are an integrated structure, and a coupling is provided at the connection position between the transmission coupling and the output shaft of the driving motor.

[0014] Preferably, an assembly groove is provided at the bottom of the movable seat plate, and the electric cylinder is fixedly connected to the assembly groove by nail-free glue.

[0015] Preferably, four connecting rods are provided between the frame top plate and the top seat plate, and two ends of the connecting rods are respectively welded to the frame top plate and the top seat plate.

[0016] Preferably, an extension nozzle is provided at the lower end of the bottom nozzle, and the extension nozzle is connected to the interior of the bottom nozzle.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model drives the bottom nozzle to perform longitudinal lifting activities through an electric cylinder, drives the bottom nozzle to perform horizontal and lateral activities through an electric push rod, and drives the bottom nozzle to perform 360-degree rotational displacement adjustment through a steering drive motor. Through the setting of a three-stage adjustment mechanism, the extrusion nozzle does not need to rely on the guide rail structure of the printer, and only needs to position and install the steering drive motor. The three-stage adjustment mechanism can be disassembled and assembled, which is convenient for the inspection and maintenance of the extrusion nozzle, overcoming the problem that the existing 3D printing extrusion nozzle needs to rely on the guide rail structure of the printer to adjust the extrusion printing, resulting in great limitations in the installation and use of the extrusion nozzle.

[0019] 2. The spiral extrusion rod is driven by a driving motor to rotate, so that the supplied ceramic material is extruded and transported to the location of the bottom nozzle, and 3D molding and printing are performed through the extended nozzle to facilitate the smooth extrusion of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the ceramic 3D printing extrusion nozzle of the utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the extrusion guide cylinder and the drive motor of the utility model;

[0022] Figure 3 This is a schematic diagram of the connection structure between the steering drive motor and the base plate of the utility model;

[0023] Figure 4 It is a schematic diagram of the connection structure between the movable seat plate and the base plate of the utility model;

[0024] In the figure: 1. extrusion guide cylinder; 2. bottom nozzle; 3. extension nozzle; 4. feeding interface; 5. top seat plate; 6. driving motor; 7. frame top plate; 8. connecting rod; 9. assembly plate; 10. electric cylinder; 11. movable seat plate; 12. base plate one; 13. steering drive motor; 14. base plate two; 15. electric push rod; 16. transmission shaft; 17. coupling; 18. spiral extrusion rod; 19. assembly groove; 20. connecting plate seat; 21. content cavity; 22. internal plate; 23. limit end block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] See also Figure 1-4The utility model provides an embodiment: a ceramic 3D printing extrusion nozzle, including an extrusion guide cylinder 1, a feeding interface 4 is arranged on one side outer wall of the extrusion guide cylinder 1, the feeding interface 4 is connected to the inside of the extrusion guide cylinder 1, and a bottom nozzle 2 is arranged at the lower end of the extrusion guide cylinder 1, and the bottom nozzle 2 and the extrusion guide cylinder 1 are an integrated structure;

[0027] Also includes:

[0028] A top seat plate 5 is arranged at the upper end of the extrusion guide cylinder 1. The top seat plate 5 and the extrusion guide cylinder 1 are an integral structure, and a driving motor 6 is arranged at the upper end of the top seat plate 5. A spiral extrusion rod 18 is arranged inside the extrusion guide cylinder 1;

[0029] A frame top plate 7 is arranged at the upper end of the driving motor 6, and an assembly receiving plate 9 is arranged at the upper end of the frame top plate 7. The assembly receiving plate 9 and the frame top plate 7 are an integrated structure. An electric cylinder 10 is arranged above the assembly receiving plate 9, and a piston rod of the electric cylinder 10 is fixedly connected to the assembly receiving plate 9 by screws;

[0030] The movable seat plate 11 and the base plate 12 are arranged above the electric cylinder 10, and the lower end of the base plate 12 is provided with a steering drive motor 13, and the output shaft of the steering drive motor 13 is provided with a connecting disc seat 20, the connecting disc seat 20 is welded to the output shaft of the steering drive motor 13, and the connecting disc seat 20 is fixedly connected to the base plate 12 by screws;

[0031] The electric push rod 15 is fixedly arranged on the upper end position of the base plate 12 by screws, and the upper end of the movable base plate 11 is provided with a base plate 2 14 , and the piston rod of the electric push rod 15 is fixedly connected with the base plate 2 14 by screws.

[0032] When in use, the bottom nozzle is driven by an electric cylinder to perform longitudinal lifting and lowering movements, the electric push rod to drive the bottom nozzle to perform horizontal and lateral movements, and the steering drive motor to drive the bottom nozzle to perform 360-degree rotational displacement adjustment. The three-level adjustment mechanism can be disassembled and assembled, which is convenient for the inspection and maintenance of the extrusion nozzle.

[0033] See also Figure 4 The base plate 12 is provided with a content cavity 21 inside, and an internal connecting plate 22 is provided inside the content cavity 21. The internal connecting plate 22 and the movable seat plate 11 are an integral structure. A limiting end block 23 is provided at one end of the internal connecting plate 22. The size of the limiting end block 23 is larger than the size of the content cavity 21. The content cavity 21 provided inside the base plate 12 serves to facilitate the guiding movement of the internal connecting plate 22.

[0034] See also Figure 2A transmission coupling 16 is provided at the upper end of the spiral extrusion rod 18. The transmission coupling 16 and the spiral extrusion rod 18 are an integrated structure. A coupling 17 is provided at the connection position between the transmission coupling 16 and the output shaft of the drive motor 6. The transmission coupling 16 provided at the upper end of the spiral extrusion rod 18 serves to facilitate the transmission connection between the spiral extrusion rod 18 and the drive motor 6.

[0035] See also Figure 3 An assembly groove 19 is provided at the bottom of the movable seat plate 11 , and the electric cylinder 10 is fixedly connected to the assembly groove 19 by nail-free glue. The assembly groove 19 provided at the bottom of the movable seat plate 11 plays the role of supporting the electric cylinder 10 .

[0036] See also Figure 1 Four connecting rods 8 are arranged between the frame top plate 7 and the top seat plate 5, and the two ends of the connecting rods 8 are respectively welded to the frame top plate 7 and the top seat plate 5. The four connecting rods 8 arranged between the frame top plate 7 and the top seat plate 5 play the role of connecting the frame top plate 7 and the top seat plate 5.

[0037] See also Figure 1 An extension nozzle 3 is arranged at the lower end of the bottom nozzle 2, and the extension nozzle 3 is connected to the interior of the bottom nozzle 2. The extension nozzle 3 arranged at the lower end of the bottom nozzle 2 plays a role in extending the spraying.

[0038] Working principle: When in use, the ceramic material enters the interior of the extrusion guide cylinder 1 through the feed interface 4, and then the spiral extrusion rod 18 is driven to rotate by the driving motor 6, so that the supplied ceramic material is extruded and transported to the position of the bottom nozzle 2, and extruded through the extended nozzle 3 for 3D molding printing. During the 3D molding printing process, the bottom nozzle 2 is driven by the electric cylinder 10 to perform longitudinal lifting activities, and the bottom nozzle 2 is driven by the electric push rod 15 to perform horizontal and lateral activities. The steering drive motor 13 drives the bottom nozzle 2 to perform 360-degree rotational displacement adjustment. Through the setting of the three-level adjustment mechanism, the extrusion nozzle does not need to rely on the guide rail structure of the printer, and only needs to position and install the steering drive motor 13. The three-level adjustment mechanism can be disassembled and assembled, which is convenient for the inspection and maintenance of the extrusion nozzle, and completes the use of the ceramic 3D printing extrusion nozzle.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A ceramic 3D printing extrusion nozzle, comprising an extrusion guide cylinder (1), a feed interface (4) is arranged on one side outer wall of the extrusion guide cylinder (1), the feed interface (4) is connected to the inside of the extrusion guide cylinder (1), a bottom nozzle (2) is arranged at the lower end of the extrusion guide cylinder (1), and the bottom nozzle (2) and the extrusion guide cylinder (1) are an integrated structure; Features: Also includes: A top seat plate (5) is arranged at the upper end of the extrusion guide cylinder (1), the top seat plate (5) and the extrusion guide cylinder (1) are an integrated structure, and a driving motor (6) is arranged at the upper end of the top seat plate (5), and a spiral extrusion rod (18) is arranged inside the extrusion guide cylinder (1); A frame top plate (7) is arranged at the upper end of the driving motor (6), and an assembly plate (9) is arranged at the upper end of the frame top plate (7), the assembly plate (9) and the frame top plate (7) are an integrated structure, an electric cylinder (10) is arranged above the assembly plate (9), and a piston rod of the electric cylinder (10) is fixedly connected to the assembly plate (9) by screws; A movable seat plate (11) and a base plate (12) are arranged above the electric cylinder (10), and a steering drive motor (13) is arranged at the lower end of the base plate (12), a connecting disc seat (20) is arranged on the output shaft of the steering drive motor (13), the connecting disc seat (20) is welded to the output shaft of the steering drive motor (13), and the connecting disc seat (20) is fixedly connected to the base plate (12) by screws; The electric push rod (15) is fixedly arranged at the upper end position of the base plate 1 (12) by means of screws, and the upper end of the movable base plate (11) is provided with a base plate 2 (14), and the piston rod of the electric push rod (15) is fixedly connected to the base plate 2 (14) by means of screws.

2. A ceramic 3D printing extrusion nozzle according to claim 1, characterized in that: The base plate (12) is provided with a content cavity (21) inside, and an internal connecting plate (22) is provided inside the content cavity (21). The internal connecting plate (22) and the movable base plate (11) are an integral structure, and a limiting end block (23) is provided at one end of the internal connecting plate (22), and the size of the limiting end block (23) is larger than the size of the content cavity (21).

3. A ceramic 3D printing extrusion nozzle according to claim 1, characterized in that: A transmission coupling (16) is arranged at the upper end of the spiral extrusion rod (18), the transmission coupling (16) and the spiral extrusion rod (18) are an integrated structure, and a coupling (17) is arranged at the connection position between the transmission coupling (16) and the output shaft of the driving motor (6).

4. A ceramic 3D printing extrusion nozzle according to claim 1, characterized in that: An assembly groove (19) is provided at the bottom of the movable seat plate (11), and the electric cylinder (10) is fixedly connected to the assembly groove (19) by means of nail-free glue.

5. A ceramic 3D printing extrusion nozzle according to claim 1, characterized in that: Four connecting rods (8) are arranged between the frame top plate (7) and the top seat plate (5), and two ends of the connecting rods (8) are respectively welded to the frame top plate (7) and the top seat plate (5).

6. A ceramic 3D printing extrusion nozzle according to claim 1, characterized in that: An extension nozzle (3) is arranged at the lower end of the bottom nozzle (2), and the extension nozzle (3) is connected to the interior of the bottom nozzle (2).

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